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TEA [102]
2 years ago
9

After a heavy rainstorm, Barbara’s dog left muddy paw prints all over her back patio. She decided to rent an electric pressure w

asher to clean up the mess. The piecewise function below shows the rental charges for the pressure washer, dependent upon how many hours she rents it. Due to high demand, you cannot rent the washer for more than 24 hours at a time. Barbara’s brother asked to use the washer and agreed to pay Barbara for any additional monies owed. If Barbara used the washer for 3 hours and her brother returned it to the store 7 hours after she rented it, how much does her brother owe her?
$15.00
$41.00
$60.00
$61.00

Mathematics
2 answers:
harkovskaia [24]2 years ago
5 0

Answer:

The answer is A. $15.00

Step-by-step explanation:

ValentinkaMS [17]2 years ago
4 0

Answer: A)

Step-by-step explanation:

i got it right

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The negative sign in 15t-2t belongs to the term____?
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The expression 15t – 2t not equivalent to 2t – 15t because the negative sign in 15t – 2t belongs to the term 2t.

Solution:

Given expressions are 15t – 2t and 2t – 15t.

To determine 15t – 2t is equivalent to 2t – 15t or not.

Substitute t = 2 in above two expressions.

15t – 2t = 15(2) – 2(2)

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So, 15t – 2t is not equivalent to 2t – 15t.

Hence the expression 15t – 2t not equivalent to 2t – 15t because the negative sign in 15t – 2t belongs to the term 2t.

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Which of the following shows the extraneous solution to the logarithmic equation below???
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Remark
You gave the second best answer. 

The trick here is not to divide both sides by 2. Solve the problem this way.

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edge 2020

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